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This dataset contains absolute-gravity measurements made using an A-10 absolute gravity meter (Micro-g Lacoste, Inc.) in 2019 in Pinal County, Arizona. Measurements were made at a total of 19 different stations used by the Arizona Department of Water Resources (ADWR) to monitor aquifer-storage changes. Data are presented in tabular and spatial vector (point) form, including relevant parameters used for processing. Data were output by g software (Micro-g Lacoste, Inc.) version 9.12.04.23. A correction for laser-frequency drift was applied, based on regular calibration of the HeNe laser used in the A-10 against an iodine-stabilized laser.
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Gravity data were collected from 2006 through 2015 to assist in mapping subsurface geology in the southern San Luis Basin, northern New Mexico. This data release provides principal facts for 566 new gravity stations that were acquired to fill in gaps in the existing public gravity data coverage.
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Aeromagnetic surveys of Nevada, merged to form seamless grids across the state. Gravity anomaly data are provided as well. Data provided in a variety of formats.
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Gravity data were collected from 2016 through 2018 to assist in mapping subsurface geology in northeastern Iowa. This data release provides principal facts for 1080 new gravity stations that were acquired to supplement existing public gravity data coverage. References cited: Blakely, R.J., 1995, Potential Theory in Gravity and Magnetic Applications, Cambridge University Press, 441 p. International Association of Geodesy, 1971, Geodetic reference system 1967: International Association of Geodesy Special Publication No. 3, 116 p. Morelli, C., ed., 1974, the International gravity standardization net 1971: International Association of Geodesy Special Publication no.4, 194 p. Plouff, Donald, 1977, Preliminary documentation...
This dataset represents the network-adjusted results of relative- and absolute-gravity surveys. Relative-gravity surveys were carried out using a Zero Length Spring, Inc. Burris relative-gravity meter. The effect of solid Earth tides and ocean loading were removed from the data. Instrument drift was removed by evaluating gravity change during repeated measurements at one or more base stations. Absolute-gravity surveys were carried out using a Micro-g LaCoste, Inc. A-10 absolute-gravity meter. Vertical gradients between the different measuring heights of the absolute- and relative-gravity meters were measured using a relative-gravity meter and tripod, and used to correlate the measurements between the two instruments....
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This dataset contains absolute-gravity measurements made using an A-10 absolute gravity meter (Micro-g Lacoste, Inc.) between 2009 and 2017 in the Big Chino Subbasin, Yavapai County, Arizona. Measurements were made about 3 times per year at a total of 33 different stations. Data are presented in tabular form, including relevant parameters used for processing. Data were output by g software (Micro-g Lacoste, Inc.) version 9.12.04.23. A correction for laser-frequency drift was applied, based on regular calibration of the HeNe laser used in the A-10 against an iodine-stabilized laser. A second soil-moisture correction was applied based on satellite soil-moisture measurements, an infiltration model, and the elevation...
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These data are microgravity measurements collected at the summit of Kilauea Volcano, Hawaii. Data are collected using multiple instruments, with each file representing measurements from a specific instrument during a specific time period. The data dictionary explains the file format and contents, and the dataset will be updated as new measurements are collected.
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Regional surface elevation grid files (provided in Grid eXchange File format) were used to study crustal architecture beneath the Southern Midcontinent (USA) by McCafferty and others (2019). The study covered a rectangular, multi-state area of 924 by 924 kilometers centered on Missouri, and a corresponding volume extending from the topographic surface to a depth of 50 kilometers below sea level. The grid files (magnetic field observation surface, topographic surface, Precambrian basement surface, and Moho interface) were used to construct templates and initial physical property models for 3D inversions. A masked version of the Precambrian basement surface grid was used to remove inverted densities and magnetic susceptibilities...
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New gravity compilation has been compiled for the Lake Superior region. The gravity compilation includes survey stations available from Natural Resources Canada, National Centers for Environmental Information (formerly National Geophysical Data Center), Minnesota Geological Survey, and U.S. Geological Survey. Individual databases were combined and duplicates were removed resulting in a database of 63,880 gravity stations. The gravity station data were reprocessed from observed gravity to simple Bouguer anomaly following standard methods that depend on the station type (for example, land, lake surface, or lake bottom observation) and used a reduction density of 2,670 kg/m3. The compilation provides a consistent dataset...
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This dataset supercedes an earlier data release and includes all previous data in addition to data from 2019. These data represent the network-adjusted results of relative- and absolute-gravity surveys. Relative-gravity surveys were carried out using a Micro-g LaCoste D-series relative-gravity meter. The effect of solid Earth tides and ocean loading were removed from the data. Instrument drift was removed by evaluating gravity change during repeated measurements at one or more base stations. Absolute-gravity surveys were carried out using a Micro-g LaCoste, Inc. A-10 absolute-gravity meter. Vertical gradients between the different measuring heights of the absolute- and relative-gravity meters were measured using...
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This dataset represents the network-adjusted results of relative- and absolute-gravity surveys in Mesilla and Las Cruces, New Mexico. Relative-gravity surveys were carried out using a Zero Length Spring, Inc. relative-gravity meter. The effect of solid Earth tides and ocean loading were removed from the data. Instrument drift was removed by evaluating gravity change during repeated measurements at one or more base stations. Absolute-gravity surveys were carried out using a Micro-g LaCoste, Inc. A-10 absolute-gravity meter. Vertical gradients between the different measuring heights of the absolute- and relative-gravity meters were measured using a relative-gravity meter and tripod, and used to correlate the measurements...


map background search result map search result map South Carolina aeromagnetic and gravity maps and data Nevada magnetic and gravity maps and data Geophysical data from the Spring and Snake Valleys area, Nevada and Utah Isostatic gravity map with simplified geology of the Los Angeles 30'x60' Quadrangle Airborne gravity survey and ground gravity in Afghanistan Illinois, Indiana, and Ohio magnetic and gravity maps and data Gravity and magnetic surveys over the Santa Rita fault system, southeastern Arizona Gravity and ground magnetic data from selected traverses in the Amargosa desert and vicinity, Nevada and California Geophysical studies of the Crump Geyser known geothermal resource area, Oregon, in 1975 Gravity data from Dry Lake and Delamar Valleys, east-central Nevada Principal facts of gravity data in the southern San Luis Basin, northern New Mexico Repeat microgravity data from Mesilla Valley, New Mexico, 2016-2017 Updated gravity stations and anomaly compilation over Lake Superior Repeat microgravity data from the Big Chino Subbasin, 2001-2017, Yavapai County, Arizona Principal facts of regional gravity data in northeast Iowa Elevation surface grids for the southern midcontinent Repeat microgravity data from Tucson Basin and Avra Valley, Arizona, 2016-2019 Repeat microgravity data from Kilauea Volcano, Hawaii Absolute gravity data from Pinal County, Arizona, 2019 Repeat microgravity data from Albuquerque and Bernalillo County, New Mexico, 2016-2019 (ver. 2.0, September 2020) Gravity and magnetic surveys over the Santa Rita fault system, southeastern Arizona Repeat microgravity data from Kilauea Volcano, Hawaii Repeat microgravity data from Mesilla Valley, New Mexico, 2016-2017 Repeat microgravity data from Albuquerque and Bernalillo County, New Mexico, 2016-2019 (ver. 2.0, September 2020) Repeat microgravity data from Tucson Basin and Avra Valley, Arizona, 2016-2019 Isostatic gravity map with simplified geology of the Los Angeles 30'x60' Quadrangle Gravity and ground magnetic data from selected traverses in the Amargosa desert and vicinity, Nevada and California Principal facts of gravity data in the southern San Luis Basin, northern New Mexico Absolute gravity data from Pinal County, Arizona, 2019 Principal facts of regional gravity data in northeast Iowa Geophysical data from the Spring and Snake Valleys area, Nevada and Utah Illinois, Indiana, and Ohio magnetic and gravity maps and data South Carolina aeromagnetic and gravity maps and data Nevada magnetic and gravity maps and data Updated gravity stations and anomaly compilation over Lake Superior Airborne gravity survey and ground gravity in Afghanistan Elevation surface grids for the southern midcontinent